If the Marine Corps’ budget request for the coming year is approved, it will begin replacing nearly its entire stock of handguns with the Army’s newest pistol.

The Modular Handgun System, a weapon system that includes both the M17 and M18 handguns, holster and two 21-round magazines and one 17-round magazines, was first fielded by the Army’s 101st Airborne Division soldiers late last year. The Army chose the Sig Sauer 9mm pistol in January 2017 over Glock and other competitors.

First reported by Soldier Systems, the procurement states the reason for acquiring the handgun as it will be “more affordable and efficient pistol for maintenance. The MHS also provides modularity and greater shooter ergonomics over the current models.”